David A. Poulsen Books

Last Sam s Cage

By David A. Poulsen

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Jeremy s Song

By David A. Poulsen

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Cowboy cool

By David A. Poulsen

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Computer geek Alex Borden and bullrider Kelly Parker are about as different from one another as two people can be. Yet the two somehow manage to become both frinds and business partners. but the bo...

Shivers and shakes

By David A. Poulsen

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It was the brochure that got them into it. When Salt and Pepper's school play is chosen to be performed at an international festival in Scotland, the dynamic duo immediately start looking for ways...

Wild Ride

By David A. Poulsen

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The Vampire s Visit The Salt Pepper Chronicles

By David A. Poulsen

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The Hunk Machine The Salt Pepper Chronicles Salt Pepper Chronicles Number 2

By David A. Poulsen

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Man Called Teacher

By David A. Poulsen

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Jeremy s Song Lawrence High Yearbook

By David A. Poulsen

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Don t Fence Me In

By David Poulsen

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.